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BLITZDUCTOR ® XT LifeCheck ® Modules<br />
BXT ML4 MY 110 / 250<br />
Pluggable DIN Rail Mounted SPDs<br />
1<br />
1´<br />
2<br />
2´<br />
45<br />
3<br />
4<br />
protected<br />
3´<br />
4´<br />
12 51<br />
(2/3 mods.)<br />
• LifeCheck SPD monitoring function<br />
• Distinctive "Y" circuit<br />
• For installation in conformity with the<br />
lightning protection zones concept at<br />
the boundaries from 0 B – 2 and higher<br />
Basic circuit diagram BXT ML4 MY<br />
Dimension drawing BXT ML4 MY<br />
Space-saving surge arrester module with LifeCheck feature for protecting four lines of stranded signal<br />
interfaces. If LifeCheck detects thermal or electrical overload, the arrester has to be replaced.<br />
This status is indicated contactlessly by the DEHNrecord LC / MCM reader.<br />
Type BXT ML4 MY 110 **) BXT ML4 MY 250<br />
Part No. 920 388 + 920 389<br />
SPD class U V<br />
SPD monitoring system LifeCheck LifeCheck<br />
Nominal voltage (U N ) 110 V 250 V<br />
Max. continuous operating d.c. voltage line-line (U C ) 170 V 620 V<br />
Max. continuous operating d.c. voltage line-PG (U C ) 85 V 320 V<br />
Max. continuous operating a.c. voltage line-line (U C ) 120 V 500 V<br />
Max. continuous operating a.c. voltage line-PG (U C ) 60 V 250 V<br />
Nominal current at 45°C (I L ) 3.0 A 3.0 A<br />
C2 Total nominal discharge current (8/20 μs) (I n ) 10 kA 10 kA<br />
C2 Nominal discharge current (8/20 μs) per line (I n ) 2.5 kA 2.5 kA<br />
Voltage protection level line-line at 1 kV/μs C3 (U p ) ≤ 300 V ≤ 1100 V<br />
Voltage protection level line-PG at 1 kV/μs C3 (U p ) ≤ 700 V ≤ 1200 V<br />
Cut-off frequency line-line (f G ) –– 20.0 MHz<br />
Capacitance line-line (C) ≤ 1.5 nF ≤ 300 pF<br />
Capacitance line-PG (C) ≤ 16 pF ≤ 16 pF<br />
Operating temperature range -40°C...+80°C -40°C...+80°C<br />
Degree of protection (with plugged-in protection module) IP 20 IP 20<br />
Pluggable into base part base part<br />
Earthing via base part base part<br />
Enclosure material polyamide PA 6.6 polyamide PA 6.6<br />
Colour yellow yellow<br />
Test standards IEC 61643-21 / EN 61643-21 IEC 61643-21 / EN 61643-21<br />
SIL classification –– SIL2 * )<br />
Approvals –– GOST<br />
920 388<br />
BXT ML4 MY MY 110<br />
920 389<br />
BXT ML4 MY MY 250<br />
BXT ML4 MY 110<br />
920 388<br />
Überspannungsableiter-Modul BLITZDUCTOR XT mit "Y"-Schaltung<br />
BXT ML4 MY 250<br />
920 389<br />
Überspannungsableiter-Modul BLITZDUCTOR XT mit "Y"-Schaltung<br />
BXT ML4 MY 110<br />
920 388<br />
Überspannungsableiter-Modul BLITZDUCTOR XT mit "Y"-Schaltung<br />
BXT ML4 MY 250<br />
920 389<br />
Überspannungsableiter-Modul BLITZDUCTOR XT mit "Y"-Schaltung<br />
* ) For more detailed information, please visit www.dehn.de/en/sil/ and page 210<br />
**) Presumably available in the second quarter 2012<br />
Accessories for BLITZDUCTOR ® XT LifeCheck ® Modules<br />
BXT BAS<br />
Base part as a very space-saving,<br />
four-pole, universal feed-through<br />
terminal for the insertion of a protection<br />
module without signal<br />
interruption.<br />
Type<br />
BXT BAS<br />
Part No. 920 300<br />
Colour<br />
yellow<br />
DRC MCM XT<br />
DIN rail mounted device with integrated<br />
LifeCheck sensor for condition<br />
monitoring of max. 10 Life -<br />
Check-equipped BXT arresters.<br />
Type<br />
DRC MCM XT<br />
Part No. 910 695<br />
Colour<br />
grey<br />
DRC LC M3+<br />
Portable device with LifeCheck<br />
sensor for flexible use. Fast and<br />
easy testing of LifeCheck-equipped<br />
arresters.<br />
Type DRC LC M3+<br />
Part No. 910 653<br />
Dimensions of<br />
storage case 340 x 275 x 83 mm<br />
For ”Accessories for BLITZDUCTOR XT LifeCheck modules“, please also refer to pages 188/206/207/208/368/370.<br />
196 www.dehn.de
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